Abstract

Mutual diffusion dynamic model with nonlocal response was proposed to describe the grating formation in SiO2 nanopraticles dispersed PQ-PMMA photopolymer. The mutual-diffusion physical mechanism between PQ and SiO2 nanoparticles is analyzed. The grating formation kinetics and dynamic redistribution of components is simulated by introducing the nonlocal effect. In experiment the dark enhancement of grating after short exposure and the photopolymerization under consecutive exposure are measured. The improvement of SiO2 nanoparticles for the holographic properties is achieved quantitatively. Finally the comparison of theoretical and experimental results is presented for understanding the mutual-diffusion characteristics.

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